package com.situ.web.controller;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@WebServlet("/ajax")
public class AjaxServlet extends HttpServlet{

//	@Override
//	protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
//		String name = req.getParameter("name");
//		String age = req.getParameter("age");
//		System.out.println("name:" + name + "age:" + age);
//		
//		resp.setContentType("text/html;charset=utf-8");
//		// {"name" : "李四1", "gender" : "男"}
//		resp.getWriter().write("{\"name\" : \"李四1\", \"gender\" : \"男\"}");
//	}

	@Override
	protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
		String name = req.getParameter("name");
		
		// select count(*) from student where name=?
		boolean isExist = false;
		if ("zhangsan".equals(name)) {
			isExist = true;
		} 
		
		// {"isExist" : true}
		resp.setContentType("text/html;charset=utf-8");
		resp.getWriter().write("{\"isExist\" : "+isExist+"}");
	}

}
